10. A rifle fires a bullet with speed of 800 m/s into a giant slab of butter weighs 8 kg on a frictionless surface. The bullet weighs 40 grams penetrates the butter, but while passing through it, the bullet pushes the butter to the left, and the butter pushes the bullet just as hard to the right, slowing the bullet down. If the butter skids off at 7 cm/s after the bullet passes through it, what is the final speed of the bullet? (The mass of the rifle matters not.) a.) 780 m/s b.) 782 m/s c.) 784 m/s d.) 786 m/s
10. A rifle fires a bullet with speed of 800 m/s into a giant slab of butter weighs 8 kg on a frictionless surface. The bullet weighs 40 grams penetrates the butter, but while passing through it, the bullet pushes the butter to the left, and the butter pushes the bullet just as hard to the right, slowing the bullet down. If the butter skids off at 7 cm/s after the bullet passes through it, what is the final speed of the bullet? (The mass of the rifle matters not.) a.) 780 m/s b.) 782 m/s c.) 784 m/s d.) 786 m/s
Physics for Scientists and Engineers
10th Edition
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 45AP: Review. A bullet of mass m = 8.00 g is fired into a block of mass M = 250 g that is initially at...
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Transcribed Image Text:10. A rifle fires a bullet with speed of 800 m/s into a giant slab of butter weighs 8 kg on a frictionless
surface. The bullet weighs 40 grams penetrates the butter, but while passing through it, the bullet
pushes the butter to the left, and the butter pushes the bullet just as hard to the right, slowing the
bullet down. If the butter skids off at 7 cm/s after the bullet passes through it, what is the final speed of
the bullet? (The mass of the rifle matters not.)
a.) 780 m/s
b.) 782 m/s
c.) 784 m/s
d.) 786 m/s
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